ICD-10-CM Tabular Index · Chapter 19 · FY 2027 T51

Toxic effect of alcohol (T51) ICD-10-CM

The T51 code range covers toxic effect of alcohol with 108 ICD-10-CM diagnosis codes. 72 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
108
Diagnosis Codes
72
Billable Codes
T51
Code Range
T51–T65
Parent Section

7th Character Note

Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

7th Character

Indicates that a seventh character is to be assigned to codes in a subcategory.

ICD-10-CM

Codes in the T51 Range 108 codes · 72 billable

108 of 108 shown
  • T51 Toxic effect of alcoholNon-billable
  • T51.0 Toxic effect of ethanolNon-billable
  • T51.0X Toxic effect of ethanolNon-billable
  • T51.0X1 Toxic effect of ethanol, accidental (unintentional)Non-billable
  • T51.0X1A Toxic effect of ethanol, accidental (unintentional), initial encounter
  • T51.0X1D Toxic effect of ethanol, accidental (unintentional), subsequent encounter
  • T51.0X1S Toxic effect of ethanol, accidental (unintentional), sequela
  • T51.0X2 Toxic effect of ethanol, intentional self-harmNon-billable
  • T51.0X2A Toxic effect of ethanol, intentional self-harm, initial encounter
  • T51.0X2D Toxic effect of ethanol, intentional self-harm, subsequent encounter
  • T51.0X2S Toxic effect of ethanol, intentional self-harm, sequela
  • T51.0X3 Toxic effect of ethanol, assaultNon-billable
  • T51.0X3A Toxic effect of ethanol, assault, initial encounter
  • T51.0X3D Toxic effect of ethanol, assault, subsequent encounter
  • T51.0X3S Toxic effect of ethanol, assault, sequela
  • T51.0X4 Toxic effect of ethanol, undeterminedNon-billable
  • T51.0X4A Toxic effect of ethanol, undetermined, initial encounter
  • T51.0X4D Toxic effect of ethanol, undetermined, subsequent encounter
  • T51.0X4S Toxic effect of ethanol, undetermined, sequela
  • T51.1 Toxic effect of methanolNon-billable
  • T51.1X Toxic effect of methanolNon-billable
  • T51.1X1 Toxic effect of methanol, accidental (unintentional)Non-billable
  • T51.1X1A Toxic effect of methanol, accidental (unintentional), initial encounter
  • T51.1X1D Toxic effect of methanol, accidental (unintentional), subsequent encounter
  • T51.1X1S Toxic effect of methanol, accidental (unintentional), sequela
  • T51.1X2 Toxic effect of methanol, intentional self-harmNon-billable
  • T51.1X2A Toxic effect of methanol, intentional self-harm, initial encounter
  • T51.1X2D Toxic effect of methanol, intentional self-harm, subsequent encounter
  • T51.1X2S Toxic effect of methanol, intentional self-harm, sequela
  • T51.1X3 Toxic effect of methanol, assaultNon-billable
  • T51.1X3A Toxic effect of methanol, assault, initial encounter
  • T51.1X3D Toxic effect of methanol, assault, subsequent encounter
  • T51.1X3S Toxic effect of methanol, assault, sequela
  • T51.1X4 Toxic effect of methanol, undeterminedNon-billable
  • T51.1X4A Toxic effect of methanol, undetermined, initial encounter
  • T51.1X4D Toxic effect of methanol, undetermined, subsequent encounter
  • T51.1X4S Toxic effect of methanol, undetermined, sequela
  • T51.2 Toxic effect of 2-PropanolNon-billable
  • T51.2X Toxic effect of 2-PropanolNon-billable
  • T51.2X1 Toxic effect of 2-Propanol, accidental (unintentional)Non-billable
  • T51.2X1A Toxic effect of 2-Propanol, accidental (unintentional), initial encounter
  • T51.2X1D Toxic effect of 2-Propanol, accidental (unintentional), subsequent encounter
  • T51.2X1S Toxic effect of 2-Propanol, accidental (unintentional), sequela
  • T51.2X2 Toxic effect of 2-Propanol, intentional self-harmNon-billable
  • T51.2X2A Toxic effect of 2-Propanol, intentional self-harm, initial encounter
  • T51.2X2D Toxic effect of 2-Propanol, intentional self-harm, subsequent encounter
  • T51.2X2S Toxic effect of 2-Propanol, intentional self-harm, sequela
  • T51.2X3 Toxic effect of 2-Propanol, assaultNon-billable
  • T51.2X3A Toxic effect of 2-Propanol, assault, initial encounter
  • T51.2X3D Toxic effect of 2-Propanol, assault, subsequent encounter
  • T51.2X3S Toxic effect of 2-Propanol, assault, sequela
  • T51.2X4 Toxic effect of 2-Propanol, undeterminedNon-billable
  • T51.2X4A Toxic effect of 2-Propanol, undetermined, initial encounter
  • T51.2X4D Toxic effect of 2-Propanol, undetermined, subsequent encounter
  • T51.2X4S Toxic effect of 2-Propanol, undetermined, sequela
  • T51.3 Toxic effect of fusel oilNon-billable
  • T51.3X Toxic effect of fusel oilNon-billable
  • T51.3X1 Toxic effect of fusel oil, accidental (unintentional)Non-billable
  • T51.3X1A Toxic effect of fusel oil, accidental (unintentional), initial encounter
  • T51.3X1D Toxic effect of fusel oil, accidental (unintentional), subsequent encounter
  • T51.3X1S Toxic effect of fusel oil, accidental (unintentional), sequela
  • T51.3X2 Toxic effect of fusel oil, intentional self-harmNon-billable
  • T51.3X2A Toxic effect of fusel oil, intentional self-harm, initial encounter
  • T51.3X2D Toxic effect of fusel oil, intentional self-harm, subsequent encounter
  • T51.3X2S Toxic effect of fusel oil, intentional self-harm, sequela
  • T51.3X3 Toxic effect of fusel oil, assaultNon-billable
  • T51.3X3A Toxic effect of fusel oil, assault, initial encounter
  • T51.3X3D Toxic effect of fusel oil, assault, subsequent encounter
  • T51.3X3S Toxic effect of fusel oil, assault, sequela
  • T51.3X4 Toxic effect of fusel oil, undeterminedNon-billable
  • T51.3X4A Toxic effect of fusel oil, undetermined, initial encounter
  • T51.3X4D Toxic effect of fusel oil, undetermined, subsequent encounter
  • T51.3X4S Toxic effect of fusel oil, undetermined, sequela
  • T51.8 Toxic effect of other alcoholsNon-billable
  • T51.8X Toxic effect of other alcoholsNon-billable
  • T51.8X1 Toxic effect of other alcohols, accidental (unintentional)Non-billable
  • T51.8X1A Toxic effect of other alcohols, accidental (unintentional), initial encounter
  • T51.8X1D Toxic effect of other alcohols, accidental (unintentional), subsequent encounter
  • T51.8X1S Toxic effect of other alcohols, accidental (unintentional), sequela
  • T51.8X2 Toxic effect of other alcohols, intentional self-harmNon-billable
  • T51.8X2A Toxic effect of other alcohols, intentional self-harm, initial encounter
  • T51.8X2D Toxic effect of other alcohols, intentional self-harm, subsequent encounter
  • T51.8X2S Toxic effect of other alcohols, intentional self-harm, sequela
  • T51.8X3 Toxic effect of other alcohols, assaultNon-billable
  • T51.8X3A Toxic effect of other alcohols, assault, initial encounter
  • T51.8X3D Toxic effect of other alcohols, assault, subsequent encounter
  • T51.8X3S Toxic effect of other alcohols, assault, sequela
  • T51.8X4 Toxic effect of other alcohols, undeterminedNon-billable
  • T51.8X4A Toxic effect of other alcohols, undetermined, initial encounter
  • T51.8X4D Toxic effect of other alcohols, undetermined, subsequent encounter
  • T51.8X4S Toxic effect of other alcohols, undetermined, sequela
  • T51.9 Toxic effect of unspecified alcoholNon-billable
  • T51.91 Toxic effect of unspecified alcohol, accidental (unintentional)Non-billable
  • T51.91XA Toxic effect of unspecified alcohol, accidental (unintentional), initial encounter
  • T51.91XD Toxic effect of unspecified alcohol, accidental (unintentional), subsequent encounter
  • T51.91XS Toxic effect of unspecified alcohol, accidental (unintentional), sequela
  • T51.92 Toxic effect of unspecified alcohol, intentional self-harmNon-billable
  • T51.92XA Toxic effect of unspecified alcohol, intentional self-harm, initial encounter
  • T51.92XD Toxic effect of unspecified alcohol, intentional self-harm, subsequent encounter
  • T51.92XS Toxic effect of unspecified alcohol, intentional self-harm, sequela
  • T51.93 Toxic effect of unspecified alcohol, assaultNon-billable
  • T51.93XA Toxic effect of unspecified alcohol, assault, initial encounter
  • T51.93XD Toxic effect of unspecified alcohol, assault, subsequent encounter
  • T51.93XS Toxic effect of unspecified alcohol, assault, sequela
  • T51.94 Toxic effect of unspecified alcohol, undeterminedNon-billable
  • T51.94XA Toxic effect of unspecified alcohol, undetermined, initial encounter
  • T51.94XD Toxic effect of unspecified alcohol, undetermined, subsequent encounter
  • T51.94XS Toxic effect of unspecified alcohol, undetermined, sequela

About the T51 Code Range

Alcohol poisoning is the toxic effect described by T51.

The subdivisions distinguish ethanol (T51.0), methanol (T51.1), 2-propanol (T51.2), and fusel oil (T51.3). Other alcohols (T51.8) and unspecified alcohol (T51.9) have separate subdivisions. Unspecified alcohol is further divided by whether the toxic effect was accidental, intentional self-harm, assault, or undetermined.

The final character distinguishes an initial encounter (A), a subsequent encounter (D), or later effects (S).

Questions About This Page

How many billable codes are in the T51 range?

Of the 108 codes in this range, 72 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.

What does the T51 range classify?

The range classifies toxic effect of alcohol. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

All ICD-10-CM ChaptersAll of Chapter 19ICD-10-CM Code LookupMS-DRG ReferenceMedicare Code EditsPOA Exempt Codes

Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.